Can a dr. have more say with his patient if her parent are guardians?

a long time ago i signed under duress for my parents to be my legal guardians. money and a house were involved. I agreed even though they said house would go into foreclosure if I didnt agree when I already had a buyer. My mother is representative payee on my checks.My dr said he would sign paper from social security making me in charge ofchecks. I worked 2 jobs last year and paid my way, so I can manage money Ive done it before. So does the guardianship affect my disabilility checks? I am bi poloar.